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6.0 WIRING (SEE WIRING DIAGRAMS)
6.1 SYSTEM COMPONENT WIRING - A DB-25 male/female cable, 693115-x series or
equivalent, is used to connect the Terminal Module to the Display Module and secured with
the cable lock screws. If mounted on the same mounting rail, plug the Terminal Module
directly into the Power Supply Module using the DB-25 D-Sub connectors at the ends of the
modules and secure them together with the screws and screw locks captive to the connectors.
If the Power Supply Module and the Terminal Module are mounted separate from each other
(must be mounted in the same panel) a DB-25 male/female cable such as P/N 693115-1 or
equivalent is used to connect these modules.
6.2 POWER WIRING - Connect the supply power wires to the 12-24 Vdc input power terminals
on the power supply, plus to terminal (+) and minus to terminal (!); power requirement is 12
to 24 Vdc (10 watts max.). The DC! terminal must be connected to panel ground which
should be the same as engine ground.
NOTE: This is the return path for normally open sensors and must be connected for proper
operation. DO NOT ground this device directly to the ignition system common coil ground.
6.3 SENSOR WIRING DISCRETE INPUTS - The sensor leads connect to the removable terminal
strips on the Terminal Module. The terminal numbers correspond to the display numbers
which also have a user assigned 20 character label associated with it. The sensor inputs are
numbered similar to previous Altronic DA and DD annunciator systems: 10-17, 20-27. The
set of terminals labeled R and S are for remote Reset and Stop respectively, with AUTO
START disable. With AUTO START enabled, Reset is wired for a start switch. Sensor inputs
10-27 can be user-configurable as class A, class B or class C logic. Any sensor point can be
wired for normally open or normally closed operation.
- Normally Open (N/O) sensor switches are wired with one wire to the bottom terminal strip
of the respective sensor number and the other to engine ground which should be the
same as power minus (!). A short jumper from the bottom terminal to the top terminal
must be connected for normally open sensors (see wiring diagrams).
- Normally closed (N/C) sensor switches are wired with one wire to the bottom terminal strip
and the other to the top terminal strip of the respective sensor number. Note that the
short jumper wire must be removed.
- Remote stop and remote reset are wired the same as the sensor switches, with AUTO
START disabled, and can be used with either normally open or normally closed contacts.
Use a wire size of between 16 AWG (max.) to 24 AWG (min.) to connect the sensor switches
to the terminal strip connector. Strip the insulation back 3/8"; twist the exposed wires tightly
together. Insert the exposed wire completely into the terminal strip and securely tighten the
clamping screw. Wires running to sensor switches must be in good condition or replaced with
new wires. When running wires, take care not to damage the insulation and take precautions
against later damage from vibration, abrasion, or liquids in conduits. An explosion-proof
conduit is not required. However; wires should be protected from damage by running them
in a protective conduit or in sheaths where appropriate. In addition, it is essential that the
following practices be adhered to:
A. Never run sensor wires in the same conduit with ignition wiring or other high energy
wiring such as the AC line power.
B. Keep secondary wires to spark plugs and other high voltage wiring at least eight inches
(200mm) away from sensor and sensor wiring.
C. Sensor switches may be connected to any passive device using contacts such as
standard switch gauges, pressure or level switches. DO NOT connect sensor leads to
any voltage producing element.
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